Get all processes

getprocs.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

extern int proc_pidpath(int pid, void * buffer, uint32_t  buffersize);

#define MAXPATHLEN 1024
#define PROC_PIDPATHINFO_MAXSIZE MAXPATHLEN*4
#define MAXCOMLEN   16 

struct proc_bsdshortinfo {
        uint32_t                pbsi_pid;       /* process id */
        uint32_t                pbsi_ppid;      /* process parent id */
        uint32_t                pbsi_pgid;      /* process perp id */
    uint32_t                pbsi_status;        /* p_stat value, SZOMB, SRUN, etc */
    char                    pbsi_comm[MAXCOMLEN];   /* upto 16 characters of process name */
    uint32_t                pbsi_flags;              /* 64bit; emulated etc */
        uid_t                   pbsi_uid;       /* current uid on process */
        gid_t                   pbsi_gid;       /* current gid on process */
        uid_t                   pbsi_ruid;      /* current ruid on process */
        gid_t                   pbsi_rgid;      /* current tgid on process */
        uid_t                   pbsi_svuid;     /* current svuid on process */
        gid_t                   pbsi_svgid;     /* current svgid on process */
        uint32_t                pbsi_rfu;       /* reserved for future use*/
};

int main(int argc, char *argv[]) {

	// For each process id
	for(pid_t pid = 0; pid < UINT16_MAX;pid++){
		
		char pathBuffer [PROC_PIDPATHINFO_MAXSIZE];
		
		// Skip it if it is our own process
		if(pid == getpid())
			continue;

		// Get the path of the process binary
		int success = proc_pidpath(pid, pathBuffer, sizeof(pathBuffer));
		
		// If we failed to get it then skip
		if(!success)
			continue;
		
		// Get the position of the last path component (the process name)
		char nameBuffer[256];
		int position = strlen(pathBuffer);
		while(position >= 0 && pathBuffer[position] != '/')
		{
		    position--;
		}

		// Copy that name to our buffer
		strcpy(nameBuffer, pathBuffer + position + 1);

		// Print it
		printf("path: %s\n\nname:%s\n\n", pathBuffer, nameBuffer);
		
	}
	return 0;
}